Blower-nozzle protector for fire boxes



April 15, 1930. F. A. BARBr-:Y

BLOWER NOZZLE PROTECTOR FOR FIRE BOXES Filed Aug. ll. 1927 rancia@.Barg/ Patented Apr. 15, 1930 UNITED STATES FRANCIS A. BARBEY, OFCAMBRIDGE, MASSACHUSETTS BLOWER-NOZZLE PROTECTOR FOR FIRE BOXES iApplication filed August 11, 1927. Serial No. 212,198.

This invention relates to a locomotive or other fire-box into which afluid under pressure, such as steam or hot air, is projected by a blowerwhose terminal passes through an opening in a wall of the fire-box andis pro vided with an outlet arranged to project the fluid in apredetermined direction or directions.

The object of the invention is to provide a nozzle-terminal protectorwhich includes a block molded from highly refractory nonmetallicmaterial such as lire clay, and is readily attachable to a fire-box walland adapted to protect the major portion of the l5 terminal from thefire, and at the same time permit the projection of fluid in thedirection or directions desired.

Of the accompanying drawings forming a part of this application,-

Figure 1 shows in longitudinal section and somewhat conventionally, alocomotive lirebox, in a wall of which a blower nozzle is inserted, saidwall being provided with a protector embodying the invention.

Figure 2 is a fragmentary perspective view, showing portions of the walland nozzle, and showing the protector block seated on the wall andoperatively related to the nozzle.

Figure 3 is a section on the plane indicated so by line 3-3 of Figure 2.

Figure 4 shows the protector block in section as shown by Figure 3.

Figure 5 is a view similar to Figure 3, the protecting fillinghereinafter described being omitted.

The same reference characters indicate the same parts in all of thefigures.

In the drawings, 12 designates a portion of a side wall of a fire-box,the fuel bed of which is designated by 1'3. 14 designates a pipe whichmay communicate with a source of supply of steam, or hot air underpressure, and has a nozzle 15 projecting through an opening 16, formedfor its reception in the wall portion 12. The nozzle projects into thefire-box and has an outlet which may be formed by one or more ports 17,the outlet being arranged to project fluid in a predetermined directionor directions into the firebox above the fuel bed. In a locomotivefirebox the wall portion 12 may constitute the inner side of a waterleg, and the opening 16 may be the bore of a tube 18, connecting thewall portion12 with an outer wall portion (not shown) constituting theouter side of the water leg. v

Clamped against the inner side of the wall portion 12 is a refractoryblock 19 of hardened fire-brick material having an inner end face 20,seated on said wall portion, a front side face 20, provided with arecess 21, formed to receive a portion of the nozzle 15 and `expose theoutlet thereof, an outer end face 201, spaced from an end of the recess,and a rear side face 20C, spaced from the bottom of the recess. Theblock is provided with elongated bolt-receiving orifices 24, extendingfrom the inner end face 20 to the outer end face 2Gb, and between thebottom of the recess 21 and the rear side face 20c, said orifices havingenlargements 25 at their outer ends providing nut abutments 26, andformed to receive portecting llings 30 of fire-brick material insertedWhile plastic, and subsequently hardened.

Fixed to and projecting inwardly from the wall portion 12, are metalbolts, or studs 23, of which there may be two, as indicated by Figure 1.The inner ends of the bolts are threaded and screwed into tapped socketsin the wall portion` 12, and extend into the orifices 24. The outer endsof the bolts are threaded, and with these threaded ends are engagedclamping nuts 27, cooperating with the abutments 26, in clamping theinner end face 2O against the wall portion 12.

As shown by Figure 1, the block is adapted to be interposed between themajor portion ofthe nozzle 15, and the fuel bed 13, so that injury tothe nozzle by heat is prevented, the nozzle being sufficiently exposedto permit it to project fluid away from the block.

The block in the condition shown by Figure 4, is placed on the studswhose threaded ends project into the enlargements 25. The nuts 27 arethen applied and screwed to a lirm bearing on the abutments 26, washers28 being preferably interposed between the nuts and abutments. After theblock has been thus fixed to the wall, the fillings 30 are nserted inthe enlargements 25 and allowed to solidify therein, s0 that theyprotect the outer ends of the studs and the nuts.

The block if cracked or broken, can be read- 5 ily removed and a new onesubstituted for it, the nuts 27 being first removed. The {irebOX wall,requires no adaptation other than the incarnation of tg'pped'sockqtstherein, for the reception of the inner ends of the studs.

lo It is therefore a simple matter to secure a protector to a ire-buxwall in accordance with my invention. The protector enables the nozzleto remain continusly'in the ifire-box for a long period, Without beingburned out.

15 I claim:

1. V blower nozzle-protecting attachment for a, refbox` having in a Wallportion thereof a bloiverfreceiving opening, said attachl t comprisinga, nozzle-protecting block o of fire-brick material, having an inner endface seated on said Wall portion, a front side face provided With arecess formed to receive a portieri of a blower nozzle extending thro vhsaid Wall opening, an outer end face g5 sp ced from an and of saidrecess, and a rear si e face spaced from the bottom of the re- Cess, theblock being provided with elongated bolt-receiving orifices extendingfrom the inner to the onlter end fa, and between the bot- 3p tom of therecess and the rear side, face, said orifices having enlargements attheir outer ends providing nut abutments and formed to receivenut-protecting fillings, bolts engaged with tapped Sockets in s aid Wallportion, and Q5 extending into said orifices, clamping nuts engaged`with the outer ends of the bolts and cooperating with said abutments,and iillings of refractory material insertedy in the enlar* ed ends ofsaid orifices and protecting 40 sal nuts.

2. A blower nozzle-protecting block of, firebrick material, having aninner. end face formed to be seated on a Wall portion of a fire-boxadjacent a blower nozzle extending 4,5 thro h said Wall portion, a frontside face prov With a recess formedv to receive4 a rtion of said nozzle,an outer end face s aced from an end of said recess, and a rear side.face spaced from the bottom of the recess, 5,9 the block being provided,with elongated boltreceiving orifices extending. from the. inner t0 theOuter end face and between the, bottom ,recessand they real: side face,said. ories ving enlargements at their outer ends pgoviding notabiitrnents and formed to recelve protectinglhngs.

n estimony whereof I have. affixed. my Signature.

FRANCIS A. BARBEY. 6G

